======================== unified (from filesystem) ========================
                                         'bitrate'  '254.643'
                                        'duration'  '284'
                                          'artist'  'Jay-Z'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
                                           'title'  "Big Pimpin' (feat. UGK)"
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                                      'lastfmtags'  "['east coast rap', 'jay z', 'hip hop', 'rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '031'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or radio-unsorted;hip hop or rnb or rap or '
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                                             'bpm'  '137.852'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Pitchfork: The Top 500 Tracks of the 2000s'
'TBPM' (BPM (beats per minute))                     '137.852'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'hip hop or rnb or rap or turntablism',
 'set-pl-billboard']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "Big Pimpin' (feat. UGK)"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jay-Z'
'TRCK' (Track number/Position in set)               '031'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['east coast rap', 'jay z', 'hip hop', 'rap']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+18.20 dB'
'TXXX:replaygain_track_peak'                        '0.058897'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/031 - Jay-Z - Big Pimpin_ (feat. UGK).mp3
                                         'working'  None
                                         'bitrate'  254
                                    'duration_sec'  284
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism;set-pl-billboard
                                        'filesize'  9063897
                                           'mtime'  1620536026
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 031 Pimpin_ electronic generic radio unsorted;hip hop rnb rap turntablism;set pl billboard
                                      'tag_artist'  Jay-Z
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Big Pimpin' (feat. UGK)
                                             'bpm'  137.852
                                    'search_title'  'big':1 'feat':4,5 'pimpin':2,3 'ugk':6,7
                                   'search_artist'  'jay':1 'jayz':3 'z':2
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 'billboard':19 'electronic':4 'generic':5 'hip':8,10 'hop':11 'pimpin':3 'pl':18 'radio':6 'rap':13 'rnb':12 'set':15,17 'turntablism':14,16 'unsorted':7,9 'va':2
                                    'search_combo'  '00poprockelectronic':19 '2000s':18C '500':15C 'big':1A 'billboard':37 'electronic':22 'feat':4A,5A 'generic':23 'hip':26,28 'hop':29 'jay':8B 'jayz':10B 'of':17C 'pimpin':2A,3A,21 'pitchfork':11C,12C 'pl':36 'radio':24 'rap':31 'rnb':30 'set':33,35 'the':13C 'top':14C 'tracks':16C 'turntablism':32,34 'ugk':6A,7A 'unsorted':25,27 'va':20 'z':9B
                                    'tag_tracknum'  31
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['east coast rap', 'jay z', 'hip hop', 'rap']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536025.6082985  (2021-05-09 06:53:45)
                             'size'  9063897